Two things in the atlas are tied to this date. Each is placed here by a source that gives the day.
The old Inunaki Tunnel, between Hisayama and Miyawaka in Fukuoka Prefecture, is known as a ghost spot and tied to an internet-era legend of a hidden village. Separately, a real murder took place at the tunnel in 1988.
In April 2021 a video of a wild boar being put into a cage drew crowds of residents in Bedahan, Sawangan, Depok, as a babi ngepet. Police declared it a hoax and arrested the organiser, a local religious teacher, whom a court sentenced to four years in prison.